Whether you’re going on a hot date or cocktailing with the girls, no doubt your Valentine’s Day plans will involve a skin-baring little number (a’la Sanaa Lathan’s leggy pink cocktail dress). To get your shoulders, legs and decolletage glowing, try treating your skin to a gentle body exfoliator. Right now, we’re loving Space NK Laughter Body Polish, a luscious body scrub inspired by the Spanish Mediterranean. Blended with bergamot, grapefruit, rosemary and ginger, the lightweight scrub polishes dull, winter-worn skin to a glowy, sexy gleam. Laughter Body Polish, $30, exclusive to Space NK stores and